Furnace arch



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F. H. WAlTE FUBNACE ARCH Filed dan. .'50 1923 2 Sheets-Sheet 2 f f M 37 nve n *oz FIFA/WV H64/ TE Patented Apr. 1, 1924.

UNITED STATES PATENT OFFICE.

FURNACE ARCH.

Application led January 30, 1923. Serial No. 615,899.

To all ywhom it may concern.'

Be it known that I, FRANK H. WArrn, a citizen of the United States, residing at Long Island City, in the county of Queens 6 and State of New York, have invented certain new and useful Improvements in a Furnace Arch, of which the following is a specification.

This invention relates to furnace arches and the primary object of the invention is to provide a novel means for suspending the arch blocks or bricks in position, whereby the blocks can be conveniently, expeditiously and independentl removed when so de- 16 sired without inter ering with any of the other blocks.

Another object of the invention is to provide an improved means for mounting the curtain wall in position.

A further object of the invention is to provide novel means for Ventilating the arch, so as to keep the temperature thereof below the temperature of the furnace, said ventilating means embodying channels extending longitudinally through each brick and through each course of brick.

A still further object of the invention is to `provide a novel hanger for the arch bricks including a hollow stem and a hollow T-head, the stem and head forming means for permitting a Ventilating draft to be had through each of the arch bricks. A further object of the invention is to provide novel means for susupending the hangers, whereby the bricks can be independently adjusted to facilitate the making of the arch.

A further object of the invention is to provide a novel hanger for the curtain wall, which not only provides novel means for holding the blocks and curtain wall in position, but also means for Ventilating the blocks of the curtain wall and for forming means for allowing preheated air to be radiated into the furnace to aid combustion.

A still further object of the invention is to provide an improved furnace arch of the above character, which will be durable and eiiicient in use, one which will be simple and easy to manufacture, and one which can be incorporated with a furnace at a minimum cost.

With these and other objects in view, the invention consists in the novel construction,

arangement and formation of parts, as will be hereinafter more specifically' described, claimed and illustrated in the accompanying drawings, in which drawings:

Figure 1 is an enlarged longitudinal section through the arch constructed in accordance with this invention.

Figure 2 is a detail perspective view of the novel hanger utilized for anchoring the curtain wall in position.

Figure 3 is a detail perspective view partly in section showing one of the upper blocks of the curtain wall. A

Figure 4 is an enlarged fragmentary transverse section taken on the line 4-4 of Figure 1.

Figure 5 is a detail horizontal section taken on the line 5 5 of Figure 4.

Figure 6 is a detail perspective view of one of the novel blocks used in the arch.

Figure T is a detail perspective view of one of the hangers for the arch blocks.

Figure 8 is a fragmentary transverse section through a curtain wall showing a modified form thereof.

Figure 9 is a plan view illustrating a portion of the furnace showing a slightly modified form of block for the curtain wall.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the lett/er A generally indicates the arch; B the curtain wall and C and D the means for anchoring the blocks of the arch and the blocks of the curtain wall B in position.

The arch A is constructed of a plurality of blocks or bricks 10, which are provided with a longitudinally extending channelway ll therethrough. Each end of each brick or block is provided with a notch 12 which communicates with said longitudinally extending passage-way 11. By referring to Figure 4 of the drawin it can be seen that the passage-way 11 o each block or brick of the arch will be in direct transverse alignment, thereby allowing a direct passage-way transversely through the arch and thereby permitting the thorough ventilation of said arch. The longitudinal faces of each block or brick 10 are provided with substantially semicircular rooves 13 and when the bricks are placed edge to edge,

it is obvious that passage-ways are formed between the bricks, which will also facilitate the ventilation thereof.

By referring to Figures 1 and 6 of the drawings it can be seen that the blocks 10 have their upper corners rabbeted or provided with longitudinally extending notches 14. These notches 14 form means for permitting the joints between the blocks to be readily sealed and these grooves can be filled with suitable asbestos, fire briek or cement. Then it is desired to remove one of the bricks this joint can of course be readily broken by the mechanic.

The curtain wall B includes the upper self-locking tiles of blocks 20 and the lower arch blocks 21. As shown these blocks 2O and 21 have their intermediate edges rabbeted as at 22 to form a tight joint. The upper block 20 is provided-with an inwardly extending laterally bowed portion 23 which is adapted to extend over the supporting eye beams 24 of the furnace. These eye beams are of course anchored in the side walls of the furnace and extend transversely thereof. The lower face of the extension 23 is provided with a longitudinally extending notch 25, the purpose of which, will be hereinafter more fully described, and the front portion of each block is provided with an opening 2G which communicates with said notch 25. Each lower block 21 has an inwardly extending portion 27 which is also provided with a notch at each edge. as at 28 and an inwardly extendin longitudinal passage-way, the purpose o which will also be hereinafter more full f described.

Now it is to be understoo that the arch A is suspended by the novel hangers C from the pairs of spaced channel beams 30 which extend transversely across the furnace and which are secured to the side walls thereof. As stated these channel beams 30 are arranged in pairs and the hangers are adapted to extend between these pairs of channel beams.

The hangers C comprise a. hollow stem 31 and a V-shaped head or body 32 which consists of a relatively long arm 33 and a relatively short arm 34. Now in applying the hangers to the blocks the relatively long arm 33 is inserted in the channel-way '11 and the stem 31 is fitted in the notch 12 as clearly shown in Figure 4 of the drawings. This provides the short arm 34 extending in the notch and provides the means for insuring the direct draft through the blocks or bricks 10. Now the stems 31 are externally threaded for the reception of holding nuts 35 and in applying the blocks in position, the hangers are inserted in each end thereof and the stems 31 of the hangers are inserted between the pairs of channel beams 30. A floor flange or washer 36 is then placed on the stem into engagement with the upper surface of the channel beams after which the nuts 35 are threaded on the stems and adjusted until the bricks or blocks 10 assume their proper position.

It has been foundv that a better draft is had through the bricks and through the hangers C when the upper ends of the hangers are arranged in staggered relation and thus certain of the hangers are made shorter than other hangers as indicated by the reference chracter 3i'.

Now the novel hangers D utilized for holding the curtain wall B is position includes a stern 40 of hollow construction. a T-sbaped upper head 11 which includes a relatively long?r arm Ll; and a relatively short arm 43 and a lower T-sl1aped head 41. This T-shaped head 44 extends at right. angles to the head 41 and includes the relatively long ann 45 and a relatively short arm 46. Now it can he seen that the relatively short arm 43 is inserted into the openings 2G in the upper blocks or tiles 20 in the curtain wall, while the long arm 42 tits within the groove formed on the lower surface of these blocks. The long arm 45 of the lower head 44 lits into the channel formed in the lower block 21 while the. stem 40 lits in the notch 28 thereof.

By this construction it can be seen that the curtain wall is firmly anchored in position and thoroughly ventilated. lt also can be seen that the anchors l) will take the heat from the arch and emanate the saine from the upper end thereof into the furnace to aid combustion. This of course helps to keep the. wall cool. lt is obvious that the air will flow past the rear face of the curtain wall into the upper T-head 41 of the hanger. The air flowing out of the T-head 41 will flow down and around the outer or furnace face of the curtain wall, thereby effectively cooling the same and keeping the temperature thereof below the fusingr point. This outtlowing air of course also aids combustion.

By utilizing the form of anchors described the blocks can be readily removed one at a time without interfering with any other block and it is obvious that each block can be independently adjustable. Further, the blocks can be readily lifted out from between the spaced channel beams 30 as the heights of these blocks are less than the distances between the pairs of channel beams. In removin the blocks, the blocks are first lifted up aove the arch and then turned sideways and brought out between the beams.

In the modified form of the curtain wall, the air will How out of the short arm 43 of the hanger down past the rear face of the curtain wall. This insures a flow of cool air past the wall, which will effectively maintain the temperature thereof below the fusing point.

It should be understood that the lower curtain wall and the upper curtain wall which is indicated by the letter B are entirely separate and independent. structures, to permit the lower curtain wall to be easily removed or replaced without reconstructing or changing the upper wall E in any manner whatsoever. he curtain tile 20 is placed upon the supporting beam 24 so as to overhang the supporting beam, and the curtain tile 20 is provided at its rear end with a rib 25 extendin transversely across the rear edge or end o the curtain tile to hold the upper curtain tile block 20 in position and limit the forward movement of the block 20 for accidental displacement thereof from its proper position. A filler packing 41 is interposed etween the top of the curtain tile block 20 and the lower edge of the curtain wall E as indicated clearly in Figure 1. By means of this asbestos packing 41', the block 20 will be firmly held in position and at the same time may be conveniently and easily removed when it is so desired for the purpose of replacing or repairing the lower curtain wall.

As shown in Figure 9, the curtain tile blocks 20 have their laterally extending portions 23 reduced in width and the space between the portions 23 are filled with fire brick 50.

Changes in details may be made without departing from the spirit or scope of this invention, but what I claim as new is 1. In a furnace, a plurality4 of spaced airs of channel beams, an arch disposed inwardly of the channel beams including a plurality of blocks, hollow hangers connected to each end of each block and extending between the pairs of beams, means adjustably connecting the hollow hangers with the beams, certain of the hangers terminating inwardly of certain other hangers, as and for the purpose specified.

2. In a furnace arch, a plurality of pairs of channel supporting beams, a plurality of arch blocks each having a longitudinally extending passage-way therethrough and a notch in each end communicating with the passage-way, a hanger for each end of each block including a hollow stem ada ted to extend between the pairs of channei) beams and a T-head for extension in said passageways, and a nut adjustably carried by each stem for engaging said channel supporting beams.

3. In a furnace arch, a Ventilating anchor therefor comprising a hollow stein having its upper end provided with external threads and a lower T-shaped head of hollow construction including a relatively long arm .ind a relatively short arm.

4. A curtain wall for arches comprising an upper L-shaped block, a lower L-shapcd block, means connecting the meeting edges of the blocks together, a supporting beam, a hanger engaging the supporting beam including a stem, an upper T- haped head and a lower T- haped head, the lower block having a channel arranged to receive the lower T-shaped head, the upper block having a groove and a passage-way therethrough for receiving the up er T-shaped head.

5. A curtain wall or furnace arches comprising curtain blocks, a hanger for the blocks including a hollow stem and a T- shaped head having one arm thereof exten ing through the blocks forming means for directing air down past the furnace face of the blocks to maintain the blocks below the fusing point.

6. A curtain for furnace arches comprising upper and lower L-shaped blocks, the upper block having a groove in its short leg, the lower block having an opening in its short leg, a hanger includin a hollow stem, a lower T-sha ed head fitted in the opening in the lower b ook, and a hollow upper head fitted in the roove terminating short of the inner end t ereof for directing cool air down past the inner face of said blocks.

7. In a furnace of the class described including a curtain wall having an opening in the upper end thereof, a supporting means for the curtain wall including a vertical tubular support and an extension formed on the upper end of the tubular su port extending through the opening in t e end of the wall for delivering air to the face of the wall at the upper end thereof.

In testimony whereof I atiix my signature.

FRANK H. WAITE. 

